Portable lamp



FIG. 1 is a perspective bottom front view of a portable lamp with the arm in an extended position;

FIG. 2 is a perspective top rear view of the portable lamp with the arm in a retracted position;

FIG. 3 is a perspective top front view of the portable lamp with the arm in an extended position;

FIG. 4 is a perspective top front view of the portable lamp with the arm in a retracted position;

FIG. 5 is a perspective side rear view of the portable lamp with the arm in an extended position;

FIG. 6 is a front view thereof; and,

FIG. 7 is a side view thereof. 

The ornamental design for a portable lamp, as shown and described. 